Home / 13,054.34-18,015.10-7,389.10

Finding the Fourth Proportional to 13,054.34, 18,015.10 and 7,389.10

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Solution

The fourth proportional to 13,054.34, 18,015.10 and 7,389.10 is: 10,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.34 : 18,015.10 = 7,389.10 : x
  2. Step 2: Convert to fraction form
    13,054.34/18,015.10 = 7,389.10/x
  3. Step 3: Cross multiply
    13,054.34x = 18,015.10 × 7,389.10
  4. Step 4: Simplify right side
    13,054.34x = 133,115,375.41
  5. Step 5: Solve for x
    x = 133,115,375.41/13,054.34
  6. Step 6: Final answer
    x = 10,197.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.